70303 ÷ 5 = 14060 R3
Alright, let's work through the division of 70303 by 5 step by step.

Step 1:
5 goes into 7 1 times with a remainder of 2.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 5 from 7 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 5

Step 2:
5 goes into 20 4 times with a remainder of 0.
Write down 4 as next digit of of the result. 
Result so far: 14
Subtract 20 from 20 to get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 5

Step 3:
5 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of of the result. 
Result so far: 140
Subtract 0 from 3 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 5

Step 4:
5 goes into 30 6 times with a remainder of 0.
Write down 6 as next digit of of the result. 
Result so far: 1406
Subtract 30 from 30 to get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 5

Step 5:
5 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of of the result. 
Result so far: 14060
Subtract 0 from 3 to get 3.

The final result is 14060 with a remainder of 3.